*{
    color: #fff;
  }
  .container{
      width: 100%;
  }

  .panel-heading{
    height:50px;
    background-color: #333;
  }
  
  .panel-body{
    height: 50px;
    background-color: #ccc;
  }
  
  .panel-footer{
    height: 50px;
    background-color: #333;
  }